GBD BL240 Instrucciones Para Instalación página 19

BL240
- If the gate is in a material different from iron, make a plate of 5 mm thick with 4 holes. Weld the bracket in the
centre of the plate and secure everything with through screws (12).
12- Unlock the operator (see unlocking device).
13 - Fit the operator on the brackets.
14 - Manually open and close the gate to its full opening and closing travel. The gate must move smoothly without
friction and the lead nut must not reach the mechanical end-stop during opening or closing. If otherwise, adjust
the bracket positions.
It is recommended to leave at least 40-50 mm of cable free.
LIMIT SWITCH ADJUSTMENT
- Cut the power to the system.
- Undo the retaining screws of the front flange (13) and remove it (14).
- Using a no. 8 box wrench, turn the screws (15) to adjust the opening limit switch A(15) and the closing limit switch
B(15), respectively.
The right-hand screw adjusts the closing limit switch and the left-hand one the opening limit switch (15a - 15b).
The deceleration stroke made by the operator is determined by the distance between the ends of the cam present on
the nut screw b(15c), where there are some relieves a/c(15c) for micro switches activation, this distance is fixed on
the operator.
On the contrary the stroke in deceleration visible on the leaf is proportional to the relation between the quota b(15c)
and the working stroke of the operator Cu(3). Therefore the lowest is the working stroke Cu(3) used to open/close the
leaf, the longest is the way in deceleration.
UNLOCKING DEVICE
Manual operation
If the gate needs to be operated manually because of a power failure or operator malfunctioning, move the protection
cap (16) in the direction indicated by the arrow (16) and insert the key provided in the lock (17).
Turn the key 90° in the direction indicated by the arrow stamped on the unlocking device; the operator will stay
unlocked without having to hold the key in position.
Manually open and close the leafs.
To prevent the gate from moving in the wind or because it is unbalanced, it is advisable to relock the operator after the
manual emergency manoeuvre by turning the key 90° in the opposite direction indicated by the arrow stamped on
the unlocking device (18).
Remove the key and then slightly move the gate until the operator locks.
- Move the gate manually only in the event of a power failure.
OPTIONAL UNLOCKING DEVICE
Manual operation
If the gate needs to be operated manually because of a power failure or operator malfunctioning, lift one of the
protection caps on the sides (19a), and insert the key provided in the lock (19a).
Turn the key 180° anticlockwise (19b) and turn the unlocking slider 90° anticlockwise; the operator will stay
unlocked without having to hold the device in position.
Manually open and close the leafs.
To prevent the gate from moving in the wind or because it is unbalanced, it is advisable to relock the operator after the
manual emergency manoeuvre by turning the unlocking slider 90° clockwise (19b). The operator is relocked
when the cursor is positioned in longitudinal direction.
Turn the key 180° clockwise and remove it (the key can only be removed from one position), then slightly move
the gate until it locks.
- Move the gate manually only in the event of a power failure.
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UK